That's an electric shift Stringer. The remote (throttle) has a red lever to run up the RPM in neutral, and then the throttle controller. Tilt is a separate toggle switch somewhere. Do you have any unused "holes" in the dash? Maybe it was removed?
The tilt motor is way at the back of the engine, port / passenger side. Might check to see if the wires are in tact.
Trim was different on the Stringers. If you have a big jackscrew on the front engine mounts (with a motor on it), then you should have a toggle for the trim somewhere too. But some of the Stringers didn't have that option, so there'll just be the engine mounts.